Is trello still working with postasync?

Everytime I use postasync it gives me trustcheck failed, I've only learned a bit on this but heres my code.

 local li = hs:GetAsync('http://api.trello.com/1/lists/'..id..'/cards'..keys) -- I know the address is right so no need to ask
 local js = hs:JSONEncode({['name']="[user]"..user.Name..":"..cmds})
 local dec = hs:PostAsync(li,js)